package com.example.booklist.interceptor;

import com.example.booklist.constant.Constants;
import com.example.booklist.model.UserInfo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * ClassName: LoginInterceptor
 * Package: IntelliJ IDEA
 * Description:
 *
 * @Author 谷京京
 * @Create 2023/11/23 18:06
 * @Version 1.0
 */
@Slf4j
@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.info("登录拦截器校验");
        HttpSession session = request.getSession(false);//false 表示没有session直接返回
        if (session != null && session.getAttribute(Constants.SESSION_USER_KEY) != null) {
            UserInfo userInfo = (UserInfo) session.getAttribute(Constants.SESSION_USER_KEY);
            if (userInfo != null && userInfo.getId() >= 0) {
                return true;
            }
        }
        response.setStatus(401);
        return false;
    }

//    @Override
//    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
//        log.info("目标方法执行后");
//    }
}
